Quick-mounting device for vehicle wheels



A. L. PUTNAM.

QUICK MOUNTING DEVICE FOR VEHICLE WHEELS.

APPLICATION FILED MAY 16, I921.

Patented Jan. 3, 1922.

UNITED STATES PATENTOFFWE.

ALDEN L. PUTNAM, DETROIT, MICHIGAN, ASSIGNOR TO DETROIT PItESSED STEEL COMPANY, OF WILMINGTON, DELAWARE, A.

conroaa'rron or DELAWARE.

QUICK-MOUNTIN G DEVICE FOR VEHICLE WHEELS.

Specification of Letters Patent.

Patented Jan. 3, 1922.

- To all whom it may concern:

Be it known that I, ALDEN L. PUTNAM, a

citizen of the United States of America, residing at Detroit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Quick-Mounting Devices for Vehicle Wheels, of which the following is a specification, reference being 'had therein to the accompan ing drawings. a The invention relates to demountable d sk wheels and has for its primary object the obtaining of a construction which Wlll permit of quick exchange of wheels, it being particularly applicable to racing cars. The invention therefore consists in the novel construction as hereinafter set forth.

In the drawings:

Figure 1 is a cross-section through the wheel in the axial plane of the hub;

Figure 2 is an elevation of the hub showing a fragment of the disk and the clamping member therefor.

A is the wheel hub, and B the disk wheel mountable thereon, which bears against a radially extending annular flange C- and 1s referably provided with a turned flange D for seating on the cylindrical portion E of the huh. I

It is usual to secure the disk to the flange by a series of studs engagmg registering apertures in the disk and an annular clamping member therefor. Each of the studs 1s provided with a nut which, when tightened, will press the annular clamping member against the disk and secure the same to the hub. 1 Such a construction is not adapted to a quick exchange such as is necessarily made in a race, for the reason that each nut must be separately unscrewed and screwed onto its stud. On the other hand, when the studs are dispensed with and the clamping member is screwed directly on the hub, some provision must be made for transmitting the torque from thehub to the disk. There are also other conditions that render such a construction undesirable.

With my improved construction the hub is provided with an annular exteriorly threaded flange at a radial distance from the axis, substantially equal to that of the studs where used, and this threaded flange is slotted radially or cut away to form a series of spaced studs F. The disk B is formed with apertures corresponding in that it is capable of shape and registering with said studs so being uickly engaged or disengaged therefrom. d is a clamping member having a flange H parallel to the flange C and an interiorly threaded cylindrical portion I for engaging the peripherally threaded studs F. The member G is also provlded with a radially inwardly extendmg 'flalqge J terminating in a cylindrical flange for sleeving over the portion E of the hub. The inner end of this flange K is flared at L to fit over the flange D of the disk and the end of said flared portion bears against the outer face of the dlsk. M is an inwardly-extending annular flange on the portlon J, which fits the inner faces of the studs and serves to hold said studs from springing radially inward when clamping pressure is exerted.

With the construction as described the clamping member G may be quickly engaged or disengaged, either by means of a tool or by radially projecting operating handles 0 When removed, the disk may be withdrawn from the studs, a new disk wheel engaged therewith, and the nut reengaged and tigthened by a few turns. When clamped, the disk will be securely fastened and the torque will be transmitted through the studs thereto.

What I claim as my invention is:

1. The combination with a disk wheel, of a hub on which said disk is mounted, a seat on said hub for said disk, a series of studs projecting from said seat and engageable with registering apertures in said disk, the entire series constituting an interrupted annular flange having a threaded face, ing member provided with a cooperating threaded annular flange for engaging with said studs, and a bearing for pressing said disk against its seat.

2. The combination with a disk wheel, of a hub on which said disk is mounted, a seat for said disk on said hub,'a n annular series of spaced studs projecting from said seat and engageable with registering apertures in said disk, said studs constituting an interrupted annulus having a threaded face, a clamping member provided with a portion for pressing said disk against its seat, threaded (portion for engaging said threaded studs, an a bearin on said clamping member sleeved upon and hub.

3. The combination with a disk wheel, of a and a clampand an annular hub on which said disk is mounted, a seat for the disk on said hub, an annular series of studs projecting laterally from said seat engaiea 1e with registeringspartures in said is and together constituting an interrupted annular flange provided with a threaded face, a clamping member having a portion for bearing against the disk to ress the same against its seat, an annular 'ange portion threaded to en age said threaded studs, and a second, anmfiar flange for engaging the opposite sides of said studs to hold the same from springing under the thrust of the clampling pressure.

4. he combination with a disk wheel, of a hub on which said disk is mounted, a radial outwardly extending flange on said hub forming a seat for the disk, a cylindrical portion of said hub for engaging the eye or central aperture in the disk, a series of studs projecting from said seat engagin registermg apertures in said disk, said stu s together constituting an interrupted annular flange having a threaded peripheral face, a clamping member provided with a portion for. en-

gaging said disk to hold the same to said seat,

an interiorly threaded annular portion for -ertures in said disk, and a c amping member having a portion for engaging said disk to hold the same to its seat and an annular 40 portion interiorly threadedto engage said threaded interrupted segments.

6. The method of formin a mounting for disk wheels consisting in i orming the hub with a seat for the disk and an annular flan e 415 projecting laterally therefrom eri hera threading said flange, radially slotising thi;

flange to form thereof a series of interrupted segments or studs and forming in the disk correspondingly shaped registering apertures or engaging said so ments. In testimony whereof I a%x my signature.

ALDEN L. PUTNAM. 

